Earl Chew
2012-Feb-23 01:14 UTC
[flac-dev] [PATCH] Support 56kHz to 19.2kHz gain analysis (Patch v4)
This implementation uses decimation to generate an estimate of the required ReplayGain adjustment for tracks sampled at high rates. This approach avoids having to generate filters with commensurately more taps, and also the subsequent effect on performance as these additional taps are evaluated for high sample rate tracks. Filter table entries with coefficients that are unchanged are marked /* ORIGINAL */. The remaining entries are new and have coefficient values obtained from src/utils/loudness/loudness.sci. See: ??????? http://lists.xiph.org/pipermail/flac-dev/2012-February/003220.html Because these filter coefficients can be generated from a known source, they are preferred to the FooBar2000 coefficients whose provenance is unknown. Signed-off-by: Earl Chew <earl_chew at yahoo.com> -------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.xiph.org/pipermail/flac-dev/attachments/20120222/d4169191/attachment-0001.htm -------------- next part -------------- A non-text attachment was scrubbed... Name: 0001-Support-56kHz-to-19.2kHz-gain-analysis-Patch-v4.patch Type: application/octet-stream Size: 29783 bytes Desc: not available Url : http://lists.xiph.org/pipermail/flac-dev/attachments/20120222/d4169191/attachment-0001.obj
Erik de Castro Lopo
2012-Feb-26 19:40 UTC
[flac-dev] [PATCH] Support 56kHz to 19.2kHz gain analysis (Patch v4)
Earl Chew wrote:> This implementation uses decimation to generate an estimate of the > required ReplayGain adjustment for tracks sampled at high rates. > > This approach avoids having to generate filters with commensurately more taps, > and also the subsequent effect on performance as these additional > taps are evaluated for high sample rate tracks. > > Filter table entries with coefficients that are unchanged are > marked /* ORIGINAL */. > > The remaining entries are new and have coefficient values obtained > from src/utils/loudness/loudness.sci. See: > > ??????? http://lists.xiph.org/pipermail/flac-dev/2012-February/003220.html > > Because these filter coefficients can be generated from a known source, > they are preferred to the FooBar2000 coefficients whose provenance is > unknown. > > Signed-off-by: Earl Chew <earl_chew at yahoo.com>This has been applied. Thanks Earl. Erik -- ---------------------------------------------------------------------- Erik de Castro Lopo http://www.mega-nerd.com/